Figure 4. Effect of time scale differences and noise on SdCDM.
The decision bias, measured by the fraction 
of cells that end up in the high branch, is plotted in color scale versus the transient asymmetry parameter 
and the signaling speed (controlled by 
), for several noise and time scale ratios. (A) 
and 
. (B) 
and 
. (C) 
and 
. (D) 
and 
. Blue denotes a symmetric decision, and red an asymmetric decision, which appears for slow enough speeds if the transient asymmetry is non-zero. Parameters are those of Fig. 1, plus 
(see also Table 1 and Methods). The underlying equations are Eqs. (1) to (4) with 
.